<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: FeedInterface.php 23953 2011-05-03 05:47:39Z ralph $
 */

/**
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
interface Zend_Feed_Reader_FeedInterface extends Iterator, Countable {
	/**
	 * Get a single author
	 *
	 * @param  int $index
	 * @return string|null
	 */
	public function getAuthor($index = 0);
	
	/**
	 * Get an array with feed authors
	 *
	 * @return array
	 */
	public function getAuthors();
	
	/**
	 * Get the copyright entry
	 *
	 * @return string|null
	 */
	public function getCopyright();
	
	/**
	 * Get the feed creation date
	 *
	 * @return string|null
	 */
	public function getDateCreated();
	
	/**
	 * Get the feed modification date
	 *
	 * @return string|null
	 */
	public function getDateModified();
	
	/**
	 * Get the feed description
	 *
	 * @return string|null
	 */
	public function getDescription();
	
	/**
	 * Get the feed generator entry
	 *
	 * @return string|null
	 */
	public function getGenerator();
	
	/**
	 * Get the feed ID
	 *
	 * @return string|null
	 */
	public function getId();
	
	/**
	 * Get the feed language
	 *
	 * @return string|null
	 */
	public function getLanguage();
	
	/**
	 * Get a link to the HTML source
	 *
	 * @return string|null
	 */
	public function getLink();
	
	/**
	 * Get a link to the XML feed
	 *
	 * @return string|null
	 */
	public function getFeedLink();
	
	/**
	 * Get the feed title
	 *
	 * @return string|null
	 */
	public function getTitle();
	
	/**
	 * Get all categories
	 *
	 * @return Zend_Feed_Reader_Collection_Category
	 */
	public function getCategories();

}
